Mystery Transformer....pls help identify. - UK Vintage Radio Repair and Restoration Discussion Forum

London John · 3rd Sep 2017, 4:21 pm

Hi All,

What I can tell you is that it's an EL84 transformer, and that it has (at least) a 16ohm tap.

Can anybody identify the manufacturer? I think it dates from 1967/68.

Many thanks, John.

G6Tanuki · 3rd Sep 2017, 5:50 pm

It looks like pretty much any generic valve output-transformer as made by loads of different outfits and ubiquitous in radios/record-players etc. over a couple of decades.

London John · 3rd Sep 2017, 8:34 pm

I agree, it does look generic. Thing is, it's from a very rare amplifier...a late 67 18W Marshall. Prior to this, they used RS EL84 and Heavy Duty OT's.

Perhaps it's made by Drake, as this coincides with when Marshall switched to Drake.

3rd Sep 2017, 4:21 pm	#1
London John Tetrode Join Date: May 2015 Location: London, UK. Posts: 57	Mystery Transformer....pls help identify. Hi All, What I can tell you is that it's an EL84 transformer, and that it has (at least) a 16ohm tap. Can anybody identify the manufacturer? I think it dates from 1967/68. Many thanks, John. Attached Thumbnails

3rd Sep 2017, 5:50 pm	#2
G6Tanuki Dekatron Join Date: Apr 2012 Location: Wiltshire, UK. Posts: 14,005	Re: Mystery Transformer....pls help identify. It looks like pretty much any generic valve output-transformer as made by loads of different outfits and ubiquitous in radios/record-players etc. over a couple of decades.

3rd Sep 2017, 8:34 pm	#3
London John Tetrode Join Date: May 2015 Location: London, UK. Posts: 57	Re: Mystery Transformer....pls help identify. I agree, it does look generic. Thing is, it's from a very rare amplifier...a late 67 18W Marshall. Prior to this, they used RS EL84 and Heavy Duty OT's. Perhaps it's made by Drake, as this coincides with when Marshall switched to Drake.